Solvent-free synthesis of 4-aryl-3,4-dihydrobenzopyran-2-ones via [3+3] cyclocoupling of phenols with cinnamic acid catalyzed by molecular iodine
โ Scribed by Durga P. Kamat; Santosh G. Tilve; Vijayendra P. Kamat
- Book ID
- 113931018
- Publisher
- Elsevier Science
- Year
- 2012
- Tongue
- French
- Weight
- 927 KB
- Volume
- 53
- Category
- Article
- ISSN
- 0040-4039
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## Abstract magnified image We report here domestic microwaveโinduced perchloric acidโcatalyzed solventโfree synthesis of various 4โarylโ3,4โdihydropyrimidones for the first time. In all the cases the yields are excellent and the mechanism follows a simple Biginelli condensation to produce the dih